GridCoverageRenderer fails to display coverages whose envelope touches the
poles when reprojection to 900913 is required
------------------------------------------------------------------------------------------------------------------------
Key: GEOT-1747
URL: http://jira.codehaus.org/browse/GEOT-1747
Project: GeoTools
Issue Type: Bug
Components: core render
Affects Versions: 2.5-M0, 2.4.1
Reporter: Andrea Aime
Assignee: Simone Giannecchini
Fix For: 2.4.2, 2.5-M1
Situation:
* coverage whose envelope spans the whole globe (exactly, -180/180, -90/90)
* coverage is in 4326
* reprojection is requested to 900913
The result is the following exception:
{code}
20 mar 16:21:01 WARN [geotools.rendering] - Latitude 90°00.0'S is too close to
a pole.
org.geotools.referencing.operation.projection.ProjectionException: Latitude
90°00.0'S is too close to a pole.
at
org.geotools.referencing.operation.projection.Mercator$Spherical.transformNormalized(Mercator.java:212)
at
org.geotools.referencing.operation.projection.MapProjection.transform(MapProjection.java:784)
at
org.geotools.referencing.operation.projection.MapProjection.transform(MapProjection.java:825)
at
org.geotools.referencing.operation.transform.AbstractMathTransform.transform(AbstractMathTransform.java:217)
at org.geotools.referencing.CRS.transform(CRS.java:983)
at org.geotools.referencing.CRS.transform(CRS.java:929)
at
org.geotools.renderer.lite.gridcoverage2d.GridCoverageRenderer.paint(GridCoverageRenderer.java:354)
at
org.geotools.renderer.lite.StreamingRenderer.renderRaster(StreamingRenderer.java:1850)
at
org.geotools.renderer.lite.StreamingRenderer.processSymbolizers(StreamingRenderer.java:1709)
...
{code}
The issue is that the code is trying to reproject the whole native envelope to
900913, but rendering over
google maps does not require that (the map is actually cut at 85° or something
like that).
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